There are gravitational anomalies in dog cats as well! I went to bed, pulled the blanket up on me, and it was heavy, did not get up and all! Well, I think, this is what I trained, this is what I am good, straight, right, right, I have no strength in my hands. She got up and found a dozen of our cunning collie, who thought to push the edge of the blanket on the floor to sleep on it.